Circle Review

The distance around a circle is

• Circumference

• Radius

• Center

• Central Angle

The distance across the circle, through its center

• Radius

• Radii

• Circumferene

• Diameter

Tags

CCSS.HSG.C.A.2

Half of a circle

• Half circle

• the circle's half

• semicircle

• semihalf

What is the radius of this circle?

• 18 in

• 10 in

• 9 in

• 8 in

Tags

CCSS.7.G.B.4

The diameter of a circle is 3 centimeters. What is the circumference?

• 11.5cm

• 9.42 cm

• unicorns are narwahls

• 45.3 cm

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

• 3.5 m

• 3 m

• 5 m

• 7 m

Tags

CCSS.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

What is the formula for circumference of a circle given the diameter?

• C = π r
• C = 2 π r
• C = π d
• C = 2 π d

Tags

CCSS.7.G.B.4

Find the circumference with a diameter of 6.8 m. Use 3.14 for pi.

• 22.7 m

• 31.5 m

• 21.4 m

• 25.8 m

Tags

CCSS.7.G.B.4